Carving-machine



2 Sheets-Sheet 1.

(No Mdel.)

s P MOORE JGARVING MACHINE.

Patented Dmsl, 1889..

nhagmpnnr. wqmx'ngion, D. C.

(No Mod81.). 2 Sheets--Shee'J 2..

' 811111111118 MACHINE.

11e. 418,418. v Pe1en1ed v1181.81, 1888.

UNITED STATES PATENT OFFICE.

STEPHEN F. MOORE, OF MILVAUKEE, VISCONSIN.

CARVING-MACHINE.

SPECIFICATION forming part of Letters Patent No. 418,416, dated December 31, 1889.

Application led July 1S, 1889. Serial No. 317,387. (No model.)

To @ZZ whom t 71mg concern.-

Be it known that I, STEPHEN F. MOORE, of Milwaukee, in the county of Milwaukee and State of lVisconsin, have invented new and useful Improvements in CarvingMachines;

and I do hereby declare the following to be a full, clear, and exact description of said invention, reference being'had to the accompanying drawings, and to the letters of ref erence marked thereon, which form a part of this specification.

My invention relates to improvements in the carving-machine .on which Letters Patent of the .United States Nos. 384,995 and 394,710 were issued to me on June 26, 1888, and December 18, 1888, respectively.

This invent-ion is of a device serving for a counterpoise for supporting adjustably the tool-carrying frame.

In the drawings, Figure l is a perspective of my complete device with such portions of the carving-machine to which it is att-ached as are necessary to show its relation thereto. Fig. 2 is a transverse section of the device on line X X of Fig. 1, looking toward the right. Fig. 3 is an end view of the weights used as a counterpoise, showing the manner in which they are supported and i made adjustable on the supporting-arm.

A is a portion of the bracket of the carvingmachine, whichbracket is hinged on a vertical shaft U, supported in a iixed bracket V, and has a swinging motion horizontally.

B is an upright standard pivoted in the outer ends of the arms of the bracket A, and has also a swinging movement horizontally on the bracket.

C is a part ot the tool-carrying frame, which is supported an d travels vertically in ways on the standard B. My improved device is adapted to serve as a counterpoise for this frame C, and is constructed so as to obviate, as far as is possible, the force on the frame C of the inertia of the counterpoise arising from the starting, stopping, or changing of motion of the standard B and bracket A, swinging horizontally. A small post D projects upwardly integrally from the standard B, and a rod E is pivoted centrally" on the post D, which rod is connected at its outer end to the frame C by a cord F, and at the other end this rod E furnishes a bearing for the bifur cate bracket G, on which bracket the arm I-I is supported, which arm H carries the gravity weight or counterpoise I thereon. The arm H at its outer end is pivoted at YV to a bracket K, which bracket is rigid on and forms a part of the bracket A. A shackle L is ixed about the arm H and is connected by a chain M to the top of the bracket G, whereby the counterpoise-arm H is supported in the bracket G, and is permitted to have such movement therein as is required for the oscillation of the gravity-weight I vertically as the frame C is moved up and down. The bracket G at its lower end terminates in a point N, which is received in a recess therefor in the rod E. This bearing-point N is in the line of the axis of the pivotal connection of the standard B with the bracket A. It will be seen that by this construction the gravity-weight I has only such horizontal movement as it obtains in harmony with the movement of the bracket A, to which it is connected, and that as the gravityweight is supported on the arm H as near as possible to the shaft II, on which the supportingbracket A swings, there is not very much movement, horizontally, given to the counterpoise by the swinging of the bracket on its shaft. The counterpoise I is preferably constructed in two parts O O, of equal weight, secured adj ustably at a distance apart on laterally-extending arms P I), the arms being connected rigidly together and pivoted in a bracket R, which bracket is provided with an aperture through which the arm II passes, the bracket R being movable on the arm H and being secured adjustably in any locality by the setscrew S therethrough against the arm. By thus supporting the counterpoise pivotally on the arm H the equipoise of the frame C is very perfectly and accurately preserved, as the weights O O always hang vertically from the rod H Whatever position it may assume by reason of being raised or lowered by the raising or lowering of the frame C, and by thus constructing the counterpoise with two weights O O, which are adjustable on the laterally-extending arms P P, the counterpoise may be nicely adj usted, so as to exert its gravity with precision perpendicularly, while the counterpoise is adapt- IOC) 4form is frequently used in the construct-ion ed to straddle the swinging bracket A when, by reason of a low ceiling in the shop where the machine is to be located, the machine has to be somewhat lowered in height, bringing the parts lmore compactly together, which of the machine, though not shown in the drawings.

For conveniently attaching the cord F to the frame C, I use a rod or bracket T, secured atv both ends to the frame, to which bracket the cord F is tied. Any equivalent means, however, would serve as Well for this purpose.

What I claim as new, and desire to secure by Letters Patent, is*

l. In a carving-machine, the combination, with a swinging bracket, a thereon-pivoted and swinging standard, and a thereon-supported and vertically-moving tool-carrying frame, of an oscillating bar centrally pivoted on the standard and connected at one end to the vertically-m ovin g tool-carrying frame and at the other end having a bearing for a supporting-post of a counterpoise-arm, a counterpoise-arm pivoted at one end on the swinging` bracket of the machine and supported at a distance from the pivoted point by a post bearing on the oscillating bar, and a counterpoise on the arm, substantially as described.

2. In a carving-machine, the combination l. of the swinging bracketA and a counterpoise I, supported on an arm pivoted at one end on g the bracket A, with a standard B, swinging i.

on bracket A, a tool-holding frame C, having vertical movement on standard B, an oscillating rod E, pivoted centrally on a post D, integral with standard B, the outer arm of the rod being connected by a flexible cord to the frame C, and a bracket G, supporting the arm H at a distance from its pivoted end on the inner end of the rod E, the point of bearing of the post G on the rod E being in line of ythe axis of oscillation of the standard B on the bracket A, substantially as described.

3. In a carving-machine, a counterpoise-arm I H, pivoted at one end on a swinging bracket and supported at a distance from the end in a bifurcate post G by a chain M, attached to' the arm and to the top of the post, in combination with an oscillating bar E, on one arm ot' which bar the post G is supported, substantially as described.

4. The combination, with a laterally-swing Ling bracket A and a thereon-pivoted arm fI-I, capable of vertical oscillation, of double l gravity-weights O. O, secured adj ust-ably at a distance apart on laterally-extending arms jI? P, pivoted in a bracket R, supported and adjustable on arm H, substantially as described.

In testimony. whereof I affix my si gnatureI in `presence of two witnesses.

STEPHEN F. MOORE. Witnesses:

C. T. BENEDICT, ANNA FAUsT. 

